/* bits/types.h -- definitions of __*_t types underlying *_t types.
   Copyright (C) 2002, 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

/*
 * Never include this file directly; use <sys/types.h> instead.
 */

#ifndef _BITS_TYPES_H
#define _BITS_TYPES_H   1

#include <features.h>
#include <bits/wordsize.h>

/* Convenience types.  */
typedef unsigned char __u_char;
typedef unsigned short int __u_short;
typedef unsigned int __u_int;
typedef unsigned long int __u_long;

/* Fixed-size types, underlying types depend on word size and compiler.  */
typedef signed char __int8_t;
typedef unsigned char __uint8_t;
typedef signed short int __int16_t;
typedef unsigned short int __uint16_t;
typedef signed int __int32_t;
typedef unsigned int __uint32_t;
#if __WORDSIZE == 64
typedef signed long int __int64_t;
typedef unsigned long int __uint64_t;
#elif defined __GLIBC_HAVE_LONG_LONG
__extension__ typedef signed long long int __int64_t;
__extension__ typedef unsigned long long int __uint64_t;
#endif

/* quad_t is also 64 bits.  */
#if __WORDSIZE == 64
typedef long int __quad_t;
typedef unsigned long int __u_quad_t;
#elif defined __GLIBC_HAVE_LONG_LONG
__extension__ typedef long long int __quad_t;
__extension__ typedef unsigned long long int __u_quad_t;
#else
typedef struct
{
  long __val[2];
} __quad_t;
typedef struct
{
  __u_long __val[2];
} __u_quad_t;
#endif


/* The machine-dependent file <bits/typesizes.h> defines __*_T_TYPE
   macros for each of the OS types we define below.  The definitions
   of those macros must use the following macros for underlying types.
   We define __S<SIZE>_TYPE and __U<SIZE>_TYPE for the signed and unsigned
   variants of each of the following integer types on this machine.

        16              -- "natural" 16-bit type (always short)
        32              -- "natural" 32-bit type (always int)
        64              -- "natural" 64-bit type (long or long long)
        LONG32          -- 32-bit type, traditionally long
        QUAD            -- 64-bit type, always long long
        WORD            -- natural type of __WORDSIZE bits (int or long)
        LONGWORD        -- type of __WORDSIZE bits, traditionally long

   We distinguish WORD/LONGWORD, 32/LONG32, and 64/QUAD so that the
   conventional uses of `long' or `long long' type modifiers match the
   types we define, even when a less-adorned type would be the same size.
   This matters for (somewhat) portably writing printf/scanf formats for
   these types, where using the appropriate l or ll format modifiers can
   make the typedefs and the formats match up across all GNU platforms.  If
   we used `long' when it's 64 bits where `long long' is expected, then the
   compiler would warn about the formats not matching the argument types,
   and the programmer changing them to shut up the compiler would break the
   program's portability.

   Here we assume what is presently the case in all the GCC configurations
   we support: long long is always 64 bits, long is always word/address size,
   and int is always 32 bits.  */

#define __S16_TYPE              short int
#define __U16_TYPE              unsigned short int
#define __S32_TYPE              int
#define __U32_TYPE              unsigned int
#define __SLONGWORD_TYPE        long int
#define __ULONGWORD_TYPE        unsigned long int
#if __WORDSIZE == 32
# define __SQUAD_TYPE           __quad_t
# define __UQUAD_TYPE           __u_quad_t
# define __SWORD_TYPE           int
# define __UWORD_TYPE           unsigned int
# define __SLONG32_TYPE         long int
# define __ULONG32_TYPE         unsigned long int
# define __S64_TYPE             __quad_t
# define __U64_TYPE             __u_quad_t
/* We want __extension__ before typedef's that use nonstandard base types
   such as `long long' in C89 mode.  */
# define __STD_TYPE             __extension__ typedef
#elif __WORDSIZE == 64
# define __SQUAD_TYPE           long int
# define __UQUAD_TYPE           unsigned long int
# define __SWORD_TYPE           long int
# define __UWORD_TYPE           unsigned long int
# define __SLONG32_TYPE         int
# define __ULONG32_TYPE         unsigned int
# define __S64_TYPE             long int
# define __U64_TYPE             unsigned long int
/* No need to mark the typedef with __extension__.   */
# define __STD_TYPE             typedef
#else
# error
#endif
#include <bits/typesizes.h>     /* Defines __*_T_TYPE macros.  */



#undef __STD_TYPE

#endif /* bits/types.h */
